. >> after a decade ofdeception,lancearmstrongadmittinghis story of success was, in his words, one big lie. it's friday, january 18. >> from abc news, this is "world news now." >> good morning. i'm john muller in for rob nelson. >> and it is friday. >> friday. we made it. tgif. >> yes. armstrong said he was driven to cheat by a ruthless desire to win, saying it never felt wrong, he never felt bad about what he was doing and still didn't seem to be terribly contrite during that confession with oprah. we'll have the complete confession in a moment. first, a look at some of the other stories we're following. including escape from algeria. five americans held hostage by terrorists. they're now safe. but for others, the danger is not over. a lot of questions as to how many people remain, how many were taken to begin with. so definitely a situation that continues to evolve. >> very fluid situation there. >>> also ahead, changing the meaning of home. the new nontraditional way which homes are growing and families are expanding. >> fascinating. especially for those that are thinking about taki